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Finding the Third Proportional to 3,179 and 3,499

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Solution

The third proportional to 3,179 and 3,499 is: 3,851.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179 : 3,499 = 3,499 : x
  2. Step 2: Convert to fraction form
    3,179/3,499 = 3,499/x
  3. Step 3: Cross multiply
    3,179x = 3,499 × 3,499
  4. Step 4: Simplify right side
    3,179x = 12,243,001
  5. Step 5: Solve for x
    x = 12,243,001/3,179
  6. Step 6: Final answer
    x = 3,851.21

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.